Improvement in apparatus for treating offal



2 Shee ts--Sheet1. T.-WE BBEB. Apparatus for Treating Offal.N0'.156,,321.-

. Patented Oct. 27,1874.

I. 2 Sheets--Sheet 2.

' T. WE BBEB v Apparatus for Treating flfial.

Patented Oct. 27,1874.

lllll A f I I I I I I! we mm; co. FHOTO'LITHAS a 4| PARK PLACE, my.

UNITED STATES PATENT OFFICE.

THOMAS WEBBER, OF CHICAGO, ILLINOIS, ASSIGNOR TO ORVILLE H. TOBEY,

OF SAME PLACE.

IMPROVEMENT lN APPARATUS FOR TREATING OFFAL.

Specification forming part of Letters Patent No. 156,321, dated October27, 1874; application filed March 14, 1874.

To all whom it may concern Be it known that I, THOMAS WEBBER, of thecity of Chicago, in the county of Cook and State of Illinois, haveinvented new and useful Improvements in Apparatus for Drying Oifal andother substances, of which the following is a full description,reference being had to the accompanying drawings, consisting of twosheets, in which- Figure 1 is a vertical section on line 00' of Fig. 2;Fig. 2, a horizontal section, one-half being taken on line y of Fig. 1and the other half on line 2 of Fig. l; and Fig. 3 is a detail.

In the drawings, A, B, and 0 represent three concentric walls, havingsuitable ends P I The space a between A and B is for air. The space 0,between B and O, is for steam. D is the chamber within which the offalis dried. I prefer to make the Walls of this chamber oval instead ofcircular. d is a partition across the spaces a b, and extending thewhole length thereof. E is a corresponding partition across the spaceI). f is an air-passage. g is an opening for the admission of air fromthe outside into a; and H, a receptacle into which the air passes beforeit enters the chamber a. E is a cylinder, supported by means of suitablehollow journals jj on the ends I P. Upon this cylinder are a number ofarms or 'stirrers, c. F G are steam-pipes; J, outlet for the vapors fromthe chamber D; K, driving-pulley; L, supports 70, a tube passing throughthe journal j into the cylinder E, the inner end a of which tube 70 isbent downward and reaches nearly to the wall of the cylinder'E. I arewings, each being hinged at h to the walls of the chamber D. They areconnected together by means of rods, which may be inserted in the eyesor loops 0'.

InFig. l the apparatus is represented inclined, as I have found that inthis position it is more effective than when standing upright. In theend P is a suitable opening for the introduction of the offal, and inthe other end a suitable opening for its discharge.

In use, the ofi'al or other substance may be introduced and dischargedcontinuously. Steam is to be brought into the passage 1) through thepipe F, while air is to be introduced into the passage a through theopening g. This air will be prevented by the partition d from passingdirectly up, but will pass around in the passage a, and will be heatedin its passage by the steam in b, and the air so heated will passthrough the opening f into the chamber D. The steam will also pass fromI) through G into the cylinder E. This cylinder being rotated rapidlywill, with the aid of the arms 0, keep the ofi'al thoroughly stirred upand in constant motion, and it will be rapidly dried by means of theheat from the wall 0 and cylinder E, and by means of the hot airintroduced through f, the moisture being rapidly carried off through J.The wings I can be adjusted by means of a rod connected therewith andpassing to the outside of the device, so as to facilitate or retard themovement of the offal through the chamber. If the wings be placed in theposition represented by the dotted lines in Fig. 2, the offal will bethrown up against them by the arms 0, and, falling back, will besomewhat retarded in its progress.

It is important to dispose of the condensation in the cylinder E, andthis I do by means of the bent tube 70 nthe pressure of the steam withinthe cylinder forcing the condensation out through this tube. Thecondensation in b can be disposed by a drip-hole in the usual manner. Aslide may be used to regulate the admission of air to the chamber D.

I do not claim a tubular agitator and a surroundingjacket; but

What I claim as new is as follows:

1. The combination of the chamber D, steam-chamber b, and air-chamber a,substantially as and for the purpose specified.

2. The tube 70 'n, in combination with the steam-cylinder E and chamberD, substantially as and for the purpose specified.

, THOMAS VYEBBER.

Witnesses:

E. A. WEST, O. W. BOND.

